Orbit Fit and Astrometric record for 04CJ39

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.

# Object: 04CJ39    
# Created Tue Oct 24 01:37:28 2017
# Orbit generated from Bernstein formalism
# Fitting   17 observations of   17
# Arc:   1.14y
# First observation: 2004/01/19
#  Last observation: 2005/03/09
Preliminary a, adot, b, bdot, g, gdot:
  -0.001063   0.452019  -0.000094  -0.025126   0.158256   0.000000
# Chi-squared of fit:   225.62 DOF:   28 RMS:  0.64
# Min/Max residuals:    -1.71    1.41
# Exact a, adot, b, bdot, g, gdot:
  4.547644E-05  4.830675E-01 -3.209221E-06 -2.727095E-02  1.690216E-01  7.678464E-02
# Covariance matrix:
  4.6008E-13  1.0883E-11  6.4199E-14 -7.4444E-13  2.7998E-12  2.3536E-11
  1.0883E-11  1.5168E-09  8.7211E-12 -1.0479E-10  3.1350E-10  3.3148E-09
  6.4199E-14  8.7211E-12  1.7578E-13 -7.6752E-13  1.8048E-12  1.9068E-11
 -7.4444E-13 -1.0479E-10 -7.6752E-13  8.0440E-12 -2.1631E-11 -2.2917E-10
  2.7998E-12  3.1350E-10  1.8048E-12 -2.1631E-11  6.5876E-11  6.8423E-10
  2.3536E-11  3.3148E-09  1.9068E-11 -2.2917E-10  6.8423E-10  7.2495E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
    2.096050  125.913648    0.129274    0.035589   -0.970660  2453023.751133
# Heliocentric elements and errors
Epoch:              2453020.5000  =  2004/01/16
Mean Anomaly:            7.52208 +/-     0.006
Argument of Peri:      125.63730 +/-     0.024
Long of Asc Node:      334.65199 +/-     0.001
Inclination:             3.61602 +/-     0.000
Eccentricity:         0.48477164 +/-    0.0001
Semi-Major Axis:     12.98409290 +/-    0.0023
Time of Perihelion: 2452663.4318 +/-       0.3
Perihelion:           6.68977288 +/-    0.0022
Aphelion:            19.27841292 +/-    0.0039
Period (y)               46.7870 +/-      0.01
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           -3.93679177 +/-    0.0002
Ecliptic Y            5.65356260 +/-    0.0002
Ecliptic Z            0.21637211 +/-    0.0000
Ecliptic XDOT        -0.00707993 +/-    0.0000
Ecliptic YDOT        -0.00357650 +/-    0.0000
Ecliptic ZDOT        -0.00039580 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO    6.89259866 +/-    0.0002
Geocenter to KBO      5.91640376 +/-    0.0003
# Hcoef: 13.84

The following table shows the complete astrometric record for 04CJ39. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (04CJ39) followed by the observatory code and reference code for the source of the astrometry.

2004 01  19.25039  08 35 21.47   +20 49 27.1   22.2V 04CJ39    691  Cj8972      
2004 01  19.27846  08 35 20.81   +20 49 28.9   22.5V 04CJ39    691  Cj8972      
2004 01  19.30797  08 35 20.09   +20 49 31.0   22.4V 04CJ39    691  Cj8972      
2004 02  14.12288  08 25 33.31   +21 16 04.7   22.4V 04CJ39    691  Cj8972      
2004 02  14.15012  08 25 32.78   +21 16 05.8   22.5V 04CJ39    691  Cj8972      
2004 02  14.17698  08 25 32.19   +21 16 07.4   22.1V 04CJ39    691  Cj8972      
2004 02  15.22639  08 25 10.66   +21 16 55.7   22.0R 04CJ39    H36  Cj8972      
2004 02  15.26263  08 25 09.91   +21 16 57.5   21.3R 04CJ39    H36  Cj8972      
2004 02  25.90610  08 21 54.67   +21 23 32.0   22.1R 04CJ39    540  Ck0160      
2004 02  25.92364  08 21 54.38   +21 23 32.4   22.2R 04CJ39    540  Ck0160      
2004 03  10.79252  08 18 57.07   +21 27 05.6   22.5R 04CJ39    540  Ck0888      
2004 03  10.84341  08 18 56.60   +21 27 05.8   22.4R 04CJ39    540  Ck0888      
2004 03  17.263471 08 18 09.08   +21 26 38.9   22.2V 04CJ39    645  C~2JxA      
2004 03  17.264300 08 18 09.08   +21 26 38.9   21.8V 04CJ39    645  C~2JxA      
2004 03  17.266788 08 18 09.07   +21 26 39.0   22.5V 04CJ39    645  C~2JxA      
2005 03  09.26362  09 57 21.966  +12 50 17.89  21.5R 04CJ39    695              
2005 03  09.35545  09 57 20.250  +12 50 25.38        04CJ39    695              

The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.

  1   0.0000      0.00    -0.06       0.00     0.14
  2   0.0001     -9.41     0.03      -0.57    -0.07
  3   0.0002    -19.71    -0.28      -1.05    -0.15
  4   0.0708  -8380.17     0.47    -444.55     0.10
  5   0.0709  -8387.64     1.10    -445.22    -0.00
  6   0.0710  -8396.04     0.69    -445.60     0.19
  7   0.0739  -8700.45     0.15    -469.23    -0.37
  8   0.0740  -8711.08     0.14    -469.94    -0.21
  9   0.1031 -11462.76    -1.71    -718.49    -0.99
 10   0.1031 -11466.80    -1.68    -719.02    -1.07
 11   0.1411 -13935.97     0.07   -1073.99     1.27
 12   0.1413 -13942.43     0.31   -1075.27     1.41
 13   0.1588 -14586.11     0.21   -1250.59    -0.08
 14   0.1588 -14586.11     0.27   -1250.59    -0.05
 15   0.1588 -14586.27     0.31   -1250.53     0.09
 16   1.1362  79595.91     0.00   -6198.82    -0.11
 17   1.1365  79565.88    -0.01   -6200.55    -0.00

The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.

04CJ39    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        12.792    12.829    12.755
ecceobj         0.477     0.478     0.475
incobj          3.624     3.624     3.624
qmin            6.542     6.691     6.365
qmax           18.892    18.968    18.817
amean          12.343    12.829    12.196
amin           11.954    12.829    11.241
amax           12.792    12.829    12.755
emean           0.465     0.478     0.466
emin            0.453     0.478     0.434
emax            0.477     0.478     0.489
imean           4.851     4.823     4.328
imin            4.777     4.823     3.831
imax            4.952     4.823     4.823
excite_mean     0.472     0.486     0.472
fracstop        0.000     0.000     0.000
cjmean          3.568     3.488     3.596

libcent 0      -180.0    -180.0    -180.0
libamp  0      -180.0    -180.0    -180.0
libcent 1      -180.0    -180.0    -180.0
libamp  1      -180.0    -180.0    -180.0
libcent 2      -180.0    -180.0    -180.0
libamp  2      -180.0    -180.0    -180.0
libcent 3      -180.0    -180.0    -180.0
libamp  3      -180.0    -180.0    -180.0
libcent 4      -180.0    -180.0    -180.0
libamp  4      -180.0    -180.0    -180.0

kozaimean       136.6     124.4     175.6
kozaiamp         11.9       0.0      51.8